@article{467750,
      url = {http://digitallibrary.un.org/record/467750},
      title = {Quality-of-service concept /},
      publisher = {UN,},
      recid = {467750},
      pages = {5 p.},
      address = {Geneva :. 2002-05-31},
      year = {2002},
      month = {May},
}